SOVERSION bump to version 2.21.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0061bd7..cee5ecc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,8 +65,8 @@
 set(LIBYANG_VERSION ${LIBYANG_MAJOR_VERSION}.${LIBYANG_MINOR_VERSION}.${LIBYANG_MICRO_VERSION})
 # set version of the library
 set(LIBYANG_MAJOR_SOVERSION 2)
-set(LIBYANG_MINOR_SOVERSION 20)
-set(LIBYANG_MICRO_SOVERSION 32)
+set(LIBYANG_MINOR_SOVERSION 21)
+set(LIBYANG_MICRO_SOVERSION 0)
 set(LIBYANG_SOVERSION_FULL ${LIBYANG_MAJOR_SOVERSION}.${LIBYANG_MINOR_SOVERSION}.${LIBYANG_MICRO_SOVERSION})
 set(LIBYANG_SOVERSION ${LIBYANG_MAJOR_SOVERSION})